Public Discourse: Our energy secretary applauds and encourages companies to leave the U.S. Chamber of Commerce over its position on climate change. Should any Cabinet secretary, with the powers of government behind him, be threatening U.S. companies? Part of the climate-change mantra is that the debate is over and the science is settled. Just to make sure, environmental groups have sought to pressure businesses to go green or at least keep silent. Now it would appear the whole weight of the federal government is being thrown behind this campaign to coerce and silence real and potential opposition. On Thursday, Steven...